Dispensing mechanism for spraying machines



April 3, 1925.

` 1,664,802 A. w. WALKER DISPENSING ME'CHANISM FR SPRAYING MACHINES Original FiledJune l2. 1922 2 Sheets-Sheet l NIW vf' li f/ I um 'JF j y woenkm Q ja f Aver -wwnxk=r A mmm 1 April 3, 192s. 1,664,802

A. W. WALKER DvIsP-ENSING MEGHANISM FOR SPRAYING MACHINES Original Filed June 12, 19,22 2 Sheets-Sheet 2 JEJE.

` mechanism,

y lar Patented Apr, 3, 1928.

UNITED STATES AVERY WL WALKER,OF GASPORT, NEW YORK.

DISPENSING- MECHANISM FOR SPRAYING MACHINES.

Original application led June 12., 1922, Serial February 4, 1926.

This invention relates to improvements in means for dispensing materials, such as powder and the like, in connection with mechanism, such as spraying machines.

The primary object of this invention is the provision of an improved type of powder dispensing mechanism, preferably for use in that type of air blast sprayer or cluster set forth in U. S. Patent No. 1,576,- O76, March 9, 1926. y

Other objects and advantages will be apparent during the course of the following detailed description. i

1n the acompanying drawings forming a part of this specification, and wherein simireference charactersy designate corresponding parts throughout the several views,

Figure 1 is a fragmentaryside elevation of the improved dispensing mechanism of the spraying machine.

Figure 2 is a fragmentary plan view ofy the improved' details of this invention.

Figures 3 and l are fragmentary cross sectional views showingcertain regulating mechanisms for the dispensing machine, in closed and open positions respectively.

Figure 5 is an enlarged cross sectional view of the details illustrated in Figures 3 and 4, in a different operating position.

Figure 6 is a fragmentary cross sectional view ofthe powder dispensing and regulating mechanism.

Figure 7 isa cross sectional view taken through the lower hopper end of the dispensing mechanism, showing cooperating flow regulating details of theinvention.

Figures 8 and 9 are respective views showing the connected yand disconnectedl clutch details for the drive of the dispensing mechanism.

Figure 1() is a developed view of al gate used in connection with this invention.

From the drawings, wherein for the purpose of illustration is Shown only the preferred embodiment of this invention, the letter A may generally designate the improved which may comprise a hopper casing B supported upon a frame C and including a constant supply providing mechanism lD operated by drive mechanism Flow regulating ineans'F is provided for controlling the now ofthe materials from the hopper casing into the .discharge air V erably of metal No. 5767,808. Divided and this application filed Serial No. 86,024.

vhaving the. outstanding legs 16 supporting the hopper casing B. The frame may be supported upon a wheeled carrier if desired, and may be operated by a prime mover, but as these are conventional details the same have not been shown in the drawings.

The hopper casing B can be made of any desired size and such as will not corrode or rust incident to the action of the germicide powder or Huid which the same is adapted to contain. This casing includes a cylindri 'cal shaped upper body portion 17, having the lower end gradually tapered as at 19. rlhe lower end of the casing may be left open', although it is .preferably provided with an annular supporting flange 20, adapted to receive details of the constant supply regulating means Ef i The hopper casingv B at its vupper end is preferably providedwith a rigid wall portion 21, and a hinged coverv plate 22, which permits the easy 'introduction of the germicide powder or fluid into the compartment 23 of the hopper' casing. Upon the rigid wall 21, an upstanding and closed gear casing 24k is provided, for the drive mechanism E, and if desired, in the top wall 25 of this shape, and the same is pref casing 24, ran opening may be. provided inV which a .closure 26 is detachably placed, to

' facilitate the placing of lubricant to the enclosed compartment 27 wherein the gears are adapted to operate in an oil bath.

- The' hopper casing B at its vlower end, in a vertical side lwall portion 28 thereof is preferably provided with an opening 29, thru `which thepowder or niiaterial from the compartment 23 is kdispensed .by the meclr anism'D, to a conduit oi' ,passage\vay 30 of the blower K, in the same or analogous inanner as set-forth in my patent vabove referred to. Y.

Referring to the feed mechanism D, the same includes avertically disposed shaft 35, which is arranged within the compartment E. 23 of the casing B, at its lower end having a relatively' large disk member or gear 40, which at its-marginal edges rests upon the flange 20, andV closes the lower Vend vof the hopper; the hopper casing B at its bottom being foi'ined to snugly permit the rotation of the disk, without displacement. The powder or other material from the compartment 23 falls downwardly over the sloping walls 19, and is deposited upon the top surface of the disk 40. This disk 40 has its marginal portion provided. with upwardly extending .spaced crown teeth 4l, lug shaped in cross section, extending at right angles from the plane of the disk, and being substantially square or rectaiigular shaped in outline. The disk 4() at its center is prof cent the opening 29. The opening 29, as is illustrated in Figure 7 of the drawings, may be said to be tanojentially arranged to the adjacent smaller disk or gear member 45, and this disk is provided with a. plurality of depending outwardly flared blades or Vteeth 47, -in spaced relation, suflicient to provide spaces 48 therebetween adapted to receive the crown piece 4l of the larger disk or gear 40.

The drive means E preferably includes a .counter shaft 50,.supported as by bearings 5l on a horizontal axis, in the housing 24; the said shaft 50 having a worm 53 thereon located .in the compartment 27, which meshes with a worm gear which is freely rotatable upon the upper end of the shaft 35, which extends in bearing relation into the housing 44, as is illustrated in Figure l.

Located in the housing compartment 27, just upwardly of a wormgear 55, is a clutch member 60, feathered for longitudinal movement upon the shaft 35, and having teeth 62 for reception yin recesses 63 provided in the gear 55, whereby to ,key the said gear 55 with the shaft 35, when it is desired to drive the latter. The clutch member is provided with an annular groove 66, 'within which the fingers oit' a yoke 67 cooperates; the yoke G7 being mounted upon a hand operated shaft 68 which rotatably bears in the casing 24, and extends laterally thereof and is provided with a handle 70 which may be held in position in any approved manner. .as by la sector 72.

The shaft 50 extends laterally through the y casing B, and is `provided with a pulley wheel wheel ,7 5 thereon, and upon which is trained afbelt 76 which extends for cooperation over a pulley wheel 77 on a drive shaft 78; the belt 76 being guarded by a Lee-reca this end the gate 80 is preferably provided with a body portion 8l, of substantiallyY triangular configuration, which at one inarginal edge thereof is provided with a portion 82 adapted to be rolled about a control shaft 84 horizontally bearing through the casing B, as is illustrated inthe drawings.

At the outer edge of the body 8l, a stopping flange 85 is provided, in a plane preferably at right angles to the normally disposed body portion 8l, and this flange 85 isV provided with an inclined edge 86 which conforms to the inclination or pitch of the blades 47 at their outer' surfaces, and is adapted to face adjacent thereto, and cooperate therewith in stopping the flow of powder through the opening 29. The lower edge of the flange 85 is furthermore provided with a notch 87, which permits the passage of the crownteeth 4l thereby; the said flange 85 thus being` .positioned slightly radially to the disk 40, when the gate is closed, to stop .the flow of the powder or materials through the casing opening 29, as Y will be apparent from an inspection ofthe drawings. The shaft 84 extends eXteriorlyl i from thehopper casing B, and is provided with an operating lever 90, which at its upper .end is provided with a pawl 91 operating over a rack 92 secured exteriorly to the casing B.

In the operation ofthe improved machine,

the desired amount of powder is placed within the hopper casing B, after which the vehicle .or othermeehanism upon which the machine is mounted is moved between the rows of trees in the orchard, and the blower K set Vin operation, in accordance with the instructions set forth in my patent above refeitreiglvto. This creates a suction which acts through the opening 29 tending to withdraw the powder from the hopper B. The shaft 85 is driven positively by action of the gears `53 and 55 when ythe clutch 60 is thrown in, as is illustrated in Figure 8,

and the lclock-wise `rotation of the gear or n disk 40 feeds .the powder towards the opening 29 in the direction of the rotatable 'disk 45, in as much as the disk 45 is disposed above the plane of the gear .or disk 40 and l in the path of travel of the powder at the periphery ofthe disk 40, the powder will engage ,the disk blades 47, and in as much as the disk 45 is positively rotated incident -to its toothed meshing 'relation withthe disk 40, the powder will be directed towards the opening 29, and the slope of the teeth 47 aid in directing the powder. The quantity of powder may be regulated for passage through the opening 29, by positioning the gate 80, in accordance with the above description.

Various changes in the shape, size, arrangements of parts may be made to the form of invention herein shown` and scribed, without and departing from the spirit of the same or the scope of the claims.

I claim:

l. In a dispensing mechanism for spraying machines the combination of a hopper Casing including an upper cylindrical por- Jtion and a lower portion provided with a sloping wall at one side thereof, the casing at the bottom at the lower end of the sloping wall having a horizontally disposed opening therethrough, a gear rotatable in said opening having upwardly facing teeth, said hopper casing in the side wall thereof adjacent said gear having an exit opening therethrough, a toothed dise member, bracket means carried by the side Wall of said hopper casing rotatably'supporting said tooth disc member therebelow and eccentrieally over the gear at said opening, the disc member having teeth in meshing relation with the teeth of the gear and being vso positioned that during rotation it Will feed material in the hopper casing thru the side wall opening.

2. In a dispensing mechanism a container having a substantially horizontal opening in the lower end thereof and a side opening in a wall of the Ycontainer adjacent said horizontal opening, a rotary member over the horizontal opening ,having teeth thereon, a rotary feed disc having teeth intermeshing with the teeth of the rotary member for the purpose of directing materials from the container thru the side Wall opening, and a closure including a door portion and an oscillating shaft bearing in the container, said door portion including a flat top flange extending from said shaft and of substantially triangular formation adapted to overlie a portion of said rotary disc, said door furthermore including a flange at the free edge of the first mentioned flange portion extending transversely thereto downwardly into the space between the rotary disc and the wall of said container in which the Side opening is provided, said' last Vmentioned flange having one end thereof shaped to eon form to the teeth of the rotary dise, end thereof being .notched to permit the passing of the teeth of the rotary member there past, and said last mentioned flange being divergent towards the rotary disc with respect to the plane vof the side wall opening.

v AVERY W. WALKER.

the other 

